Ok, I uninstalled the two extensions and installed the newest versions of same. When installing the new versions I get a prompt that says something to the effect of: "The files on your system are newer than the files you are installing, do you want to replace the files on your system with these files" (not an exact quote). I choose "Yes to All". I hope that is the right choice.

Anyway, that didn't help the JavaScript error. I'm still getting the error.